# NTSB investigations, IA: Landing gear collapse

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB CEN23LA192](https://openairdocs.org/ntsb/CEN23LA192.md): North American-Buehn T-6G · Ankeny, IA · Accident · No injuries · Class 4 · Limited · Final report · May 20, 2023 · N42JM · Substantial damage
  > The pilot’s inadvertent retraction of the landing gear control lever, resulting in a gear-up landing on the runway.
- [NTSB CEN23LA091](https://openairdocs.org/ntsb/CEN23LA091.md): Cessna 150G · Pocahantas, IA · Accident · No injuries · Class 4 · Limited · Final report · Dec 20, 2022 · N2930J · Substantial damage
  > The pilot’s landing flare which resulted in a bounced landing and the nose landing gear collapsing. Contributing to the accident was the airplane's encounter with adverse weather conditions which led to structural icing that affected flight characteristics…
- [NTSB GAA18CA341](https://openairdocs.org/ntsb/GAA18CA341.md): Piper PA 28 · Marion, IA · Accident · No injuries · Data collection · Final report · Jun 10, 2018 · N4295T · Substantial damage
  > The pilot’s improper pitch during the first landing, which resulted in a porpoise, and the failure of the nose landing gear during the second landing after a subsequent go-around.
- [NTSB GAA17CA422](https://openairdocs.org/ntsb/GAA17CA422.md): Piper PA32 · Marion, IA · Accident · No injuries · Data collection · Final report · Jul 15, 2017 · N31841 · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll.
- [NTSB GAA16CA154](https://openairdocs.org/ntsb/GAA16CA154.md): Nicholson David F RV 9 · Allison, IA · Accident · No injuries · Data collection · Final report · Mar 22, 2016 · N347N · Substantial damage
  > The pilot's improper soft-field landing technique, which resulted in a nose landing gear collapse and a nose over.
- [NTSB CEN14LA493](https://openairdocs.org/ntsb/CEN14LA493.md): Davis Benny Christen Eagle II · Vinton, IA · Accident · No injuries · Limited investigation · Final report · Sep 3, 2014 · N229HP · Substantial damage
  > The pilot's loss of directional control during landing after the airplane encountered uneven pavement at the intersection with a crossing runway.
- [NTSB CEN12CA607](https://openairdocs.org/ntsb/CEN12CA607.md): North American AT-6F · Council Bluffs, IA · Accident · No injuries · Data collection · Final report · Aug 31, 2012 · N244GR · Substantial damage
  > An unlocking of the excessively worn tailwheel lock mechanism, which resulted in a loss of directional control during landing.
- [NTSB CEN11LA402](https://openairdocs.org/ntsb/CEN11LA402.md): Cessna P210R · Albia, IA · Accident · Serious injuries · Limited investigation · Final report · Jun 18, 2011 · N900SR · Substantial damage
  > The pilot's inadequate preflight inspection, in which he did not detect that less fuel was on board the airplane than planned, which precipitated a loss of engine power due to fuel exhaustion during initial descent.
- [NTSB CEN10CA106](https://openairdocs.org/ntsb/CEN10CA106.md): Piper PA-24-260 · Cherokee, IA · Accident · No injuries · Data collection · Final report · Jan 21, 2010 · N8916P · Substantial damage
  > The pilot misjudged his altitude while on short final approach.
- [NTSB CEN09CA516](https://openairdocs.org/ntsb/CEN09CA516.md): Grumman Acft ENG Cor-Schweizer G-164A · Harlan, IA · Accident · No injuries · Data collection · Final report · Aug 10, 2009 · N4598 · Substantial damage
  > The pilot's failure to perform accurate weight and balance calculations which resulted in exceeding the maximum takeoff weight and the airplane's climb capability.
- [NTSB CEN09CA121](https://openairdocs.org/ntsb/CEN09CA121.md): Cessna 150M · Greene, IA · Accident · No injuries · Data collection · Final report · Dec 31, 2008 · N899CB · Substantial damage
  > A loss of engine power due to undetermined reasons. Contributing to the accident was the rough, snow-covered terrain.
- [NTSB CHI08CA260](https://openairdocs.org/ntsb/CHI08CA260.md): Cessna A188B · Camanche, IA · Accident · No injuries · Data collection · Final report · Aug 20, 2008 · N53243 · Substantial damage
  > The pilot took off on an unsuitable airstrip which resulted in the airplane becoming prematurely airborne with inadequate airspeed after it contacted a rise in the terrain.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'IA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '094' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/094/sequence?state=IA

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